Normally, I wouldn't touch anything from China. Now I said that from Japan long ago and more recently from Taiwan but those guys are putting out some serious stuff in the cycling industry. The VD exhaust I got is not stock. It has a different front header (no heat shield) and the collector header is 40mm shorter than stock. The ID of the pipes is specific for what I wanted based on a projected flow of a modified SL head. I did not pay for this particular pipe. Previous to this I did buy a stock VD pipe and was impressed by the build quality and simplicity for what I wanted. The hardness of the material is comparable to Akra, Termi Arrow etc. The tubing is thicker, the weld penetration is very uniform, thermal consistency is good and aesthetically, the pipe looks as good as anything custom and certainly nicer that the mainline stuff.Vandemon are made in China, the company is Van Hool, they may or may not sell to you directly. Recently I enquired about a V4 exhaust and they wouldnt sell to me. The quality is first class, the styling is... well its personal taste but I think the cans look crappy despite the quality of the work. There's plenty of good undertail options for the twin, I like the Termis' plus they have the Italian heritage. If you are going to stump up for a new exhaust the figure you should be concerned with is the difference in price. I would rather pay another few k to get the exhaust i like the best. As for tuning, as far as warranty goes, if your bike is new and you want no hassles, go the Akra plus Ducati software route. If not so important any decent dyno tuner should be able to sort you out.
I bought a full SBK storm pipe and a full SBK Akra pipe for the 1199RS engine as those pipes were built specifically for that displacement and those heads are modified. A lot of guys are throwing race pipes (real race pipes) not "race replicas" on stock motors. These pipes are not optimally tuned for those applications. Those race motors are using modified chambers and electronics that the street guys don't have. Get a pipe that is made for your motor. Now the flame wars start with the dyno charts. .... the dyno charts unless your racing for money. Get the pipe that works for you. If your a street rider, get a pipe that wont cook your nuts. Another reason I am using the VanAsian pipe is the JP oil pan will not work with the traditional system which left the Akra or Termi under tail which I just wasn't much into. Im currently toying with chopping the cans off the VanAsian pipe and welding something else on there maybe some Termi cans. Its a bit loud for my taste but it does sound beastly. Lastly, the pipe is cooler than the traditional pipe that I ran for years. I don't notice the heat.